| Value | Category | Cases | |
|---|---|---|---|
| 0 | less than one month | 0 |
0%
|
| 1 | 13 |
7.2%
|
|
| 2 | 11 |
6.1%
|
|
| 3 | 14 |
7.7%
|
|
| 4 | 9 |
5%
|
|
| 5 | 6 |
3.3%
|
|
| 6 | 17 |
9.4%
|
|
| 7 | 11 |
6.1%
|
|
| 8 | 25 |
13.8%
|
|
| 10 | 4 |
2.2%
|
|
| 12 | 71 |
39.2%
|
|
| 98 | don't know | 0 |
0%
|
| 99 | refused | 0 |
0%
|
| Sysmiss | 4724 |